Sign PDF
Draw, type or upload your signature and place it on any page. Nothing is uploaded.
Drop the PDF to sign
or select to choose from your device
Files are processed on this device. Nothing is uploaded.
How to use Sign PDF
- Add the PDF you need to sign.
- Draw your signature with a mouse, finger or pen, type your name, or upload a photo of your signature, then select Place signature on this page.
- Drag the signature where it belongs and resize it with the round handle. Use the arrows to reach other pages, add the date if needed, then select Sign and download.
How it works
Your signature is turned into a transparent picture and drawn onto the page you choose at the position and size you set. The rest of the PDF is not re-created: text stays selectable and the file stays small. If you upload a photo of a signature on paper, Remove the white paper background makes the paper transparent so only the ink is placed.
The PDF is opened, changed and saved by your own browser. It is not uploaded, so contracts, IDs, bank and medical documents stay on your device.
What you get is an electronic signature: an image of your signature on the document, which is what most everyday paperwork (forms, offers, leases, permission slips) asks for and what laws such as the US ESIGN Act and the EU eIDAS regulation recognise as a valid form of signing for most agreements. It is not a certificate-based digital signature, which cryptographically proves who signed and that nothing changed afterwards, and which some government and regulated filings require.
Example
A two-page rental agreement: draw your signature once, place it above the signature line on page 2, add today’s date beside it, and download agreement-signed.pdf.
Frequently asked questions
Is it safe to sign a PDF here?
Your document and your signature are processed in your browser and are not sent to any server, which you can verify by disconnecting from the internet after the page loads. We do not store signatures.
Is an electronic signature legally valid?
In most countries and for most agreements, yes: a drawn or typed signature shows intent to sign. Some documents (certain government filings, wills, property transfers in some places) need a witnessed or certificate-based signature. Check the requirement of whoever asked you to sign.
Can I sign on my phone?
Yes. Draw with your finger in the signature box, then drag the signature into place.
Can I add my signature to several pages?
Yes. Go to each page and use Add it to this page again. You can also add the date or initials as text.
Can someone remove or copy my signature from the PDF?
An image signature can be copied by anyone with the file, as with any scanned signature. To stop later changes to the document, flatten it or protect it with a password after signing.
Does this create a digital signature with a certificate?
No. Certificate-based signing needs a digital ID issued to you by a trust provider. This tool adds a visible signature image.
Limitations
- Adds a visible signature image; it does not add a cryptographic (certificate) signature or an audit trail.
- One PDF at a time.
- It cannot collect signatures from other people by e-mail.
- Password-protected PDFs must be unlocked first with Unlock PDF.
Last reviewed November 9, 2026. How we build and test tools.